org.apache.commons.collections4.queue
Class AbstractQueueDecorator<E>
java.lang.Object
org.apache.commons.collections4.collection.AbstractCollectionDecorator<E>
org.apache.commons.collections4.queue.AbstractQueueDecorator<E>
- Type Parameters:
E
- the type of the elements in the queue
- All Implemented Interfaces:
- Serializable, Iterable<E>, Collection<E>, Queue<E>
- Direct Known Subclasses:
- UnmodifiableQueue
public abstract class AbstractQueueDecorator<E>
- extends AbstractCollectionDecorator<E>
- implements Queue<E>
Decorates another Queue
to provide additional behaviour.
Methods are forwarded directly to the decorated queue.
- Since:
- 4.0
- Version:
- $Id: AbstractQueueDecorator.java 1477765 2013-04-30 18:37:37Z tn $
- See Also:
- Serialized Form
Methods inherited from class org.apache.commons.collections4.collection.AbstractCollectionDecorator |
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, setCollection, size, toArray, toArray, toString |
Methods inherited from interface java.util.Collection |
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray |
AbstractQueueDecorator
protected AbstractQueueDecorator()
- Constructor only used in deserialization, do not use otherwise.
AbstractQueueDecorator
protected AbstractQueueDecorator(Queue<E> queue)
- Constructor that wraps (not copies).
- Parameters:
queue
- the queue to decorate, must not be null
- Throws:
IllegalArgumentException
- if list is null
decorated
protected Queue<E> decorated()
- Gets the queue being decorated.
- Overrides:
decorated
in class AbstractCollectionDecorator<E>
- Returns:
- the decorated queue
offer
public boolean offer(E obj)
- Specified by:
offer
in interface Queue<E>
poll
public E poll()
- Specified by:
poll
in interface Queue<E>
peek
public E peek()
- Specified by:
peek
in interface Queue<E>
element
public E element()
- Specified by:
element
in interface Queue<E>
remove
public E remove()
- Specified by:
remove
in interface Queue<E>
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